// P2334R1
// { dg-do preprocess }
// { dg-options "" }

#define A
#undef B

#elifdef A // { dg-error "'#elifdef' without '#if'" }
#elifdef B // { dg-error "'#elifdef' without '#if'" }
#elifndef A // { dg-error "'#elifndef' without '#if'" }
#elifndef B // { dg-error "'#elifndef' without '#if'" }

#if 1 // { dg-error "-:began here" }
#else
#elifdef A // { dg-error "'#elifdef' after '#else'" }
#endif

#if 1 // { dg-error "-:began here" }
#else
#elifdef B // { dg-error "'#elifdef' after '#else'" }
#endif

#if 1 // { dg-error "-:began here" }
#else
#elifndef A // { dg-error "'#elifndef' after '#else'" }
#endif

#if 1 // { dg-error "-:began here" }
#else
#elifndef B // { dg-error "'#elifndef' after '#else'" }
#endif

#if 0
#elifdef A = // { dg-warning "extra tokens at end of '#elifdef' directive" }
#endif

#if 0
#elifdef B = // { dg-warning "extra tokens at end of '#elifdef' directive" }
#endif

#if 0
#elifndef A = // { dg-warning "extra tokens at end of '#elifndef' directive" }
#endif

#if 0
#elifndef B = // { dg-warning "extra tokens at end of '#elifndef' directive" }
#endif

#if 0
#elifdef // { dg-error "no macro name given in '#elifdef' directive" }
#endif

#if 0
#elifndef // { dg-error "no macro name given in '#elifndef' directive" }
#endif

#if 0
#elifdef , // { dg-error "macro names must be identifiers" }
#endif

#if 0
#elifndef , // { dg-error "macro names must be identifiers" }
#endif
